Add 21/36 and 4/24
21/36 + 4/24 is 3/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 24 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 36 × 2 = 72,
21/36 = 21 × 2/36 × 2 = 42/72 - Likewise, for the 2nd fraction, since 24 × 3 = 72,
4/24 = 4 × 3/24 × 3 = 12/72 - Add the two like fractions:
42/72 + 12/72 = 42 + 12/72 = 54/72 - 54/72 simplified gives 3/4
- So, 21/36 + 4/24 = 3/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/36+4/24 21/36+8/24 21/72+4/24 21/36+4/48 63/36+4/24 21/36+12/24 21/36+4/72 21/36+20/24 21/36+28/24